Home / 279,907,015.72-386,348,519.52-162,470,179.96

Finding the Fourth Proportional to 279,907,015.72, 386,348,519.52 and 162,470,179.96

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Solution

The fourth proportional to 279,907,015.72, 386,348,519.52 and 162,470,179.96 is: 224,253,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,907,015.72 : 386,348,519.52 = 162,470,179.96 : x
  2. Step 2: Convert to fraction form
    279,907,015.72/386,348,519.52 = 162,470,179.96/x
  3. Step 3: Cross multiply
    279,907,015.72x = 386,348,519.52 × 162,470,179.96
  4. Step 4: Simplify right side
    279,907,015.72x = 62,770,113,493,693,976
  5. Step 5: Solve for x
    x = 62,770,113,493,693,976/279,907,015.72
  6. Step 6: Final answer
    x = 224,253,448.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.